Silas dodson



(No Mode.)

S. DODSON.

' DISINTEGRATING MACHINE. No. 274,574( Patented Mar.27,1883.

N. PETERS. mno-Lahaghphcf. wnhingwn. D.

UNITED STATES PATENT OFFICE.

SILAS DODSON, F NEW YORK, N. Y.

DISINTEGRATING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 274,574, dated March 27, 1883.

Application tiled December 18. 1852. (No model.)

To all whom Ait may concern:

tion, in a disintegrating-machinmof a rotaryA part and a fixed abutment composed of sections between which the material to be disintegrated is operated upon, the said rotary part having V-shaped circumferential ribs or projections and the said abutment having corresponding V-shaped grooves, which are closer et the bottom to said ribs or projections and extend outside the sides of the rotary part, with devices for adjusting' and securing said abutment. l

e In the accompanying drawings, Figure 1 is a vertical section of a machine embodying my improvement. Fig. 2 is a top view ofthe same, with the top of the case removed and the hopper in section; and Fig.3 is apartly-sectional elevation of the same, taken in a plane at right angles to that of Fig. l.

Similar letters of reference designate corresponding parts in all the figures.

A A' designate the case ot' the machine. It is composed of a lower base portion, A, and an upper removable portion, A.' This case is provided with a hopper, B B', which is made in two sections, the upper being attached to or made integral with the upper section of the case. The upper section of the hopper is provided witli a sliding gate, B2, whereby the passage of material through it may be controlled. This gate is connected by alink, B3, to a hand-lever, B

C C' C2 designate a stationary abutment, here shown as composed of three sections connected by a bolt, D. This abutment is sup-A ported in a bearing or slideway, a', in the lower section of' the case. Against its outer end impinge screws b, whereby it may be adjusted inward. One of these screws might suce. On the top of the abutment bears a set-screw,

c, whereby it may be secured in different posid tions to which it may be adjusted. As the sections of the abutment are held together by the bolt D, oniy one set-screw c is necessary to hold them in place after adjustment. This abutment has V-shu-ped grooves, forming a series of inclined sides or faces, d, which have angular arc-shaped profiles. 0n these sides or faces preferably are teeth d.

E E designate a rotary part composed of two sections mounted on ashaft, F. This shaft kis provided with a collar, F', against which one of these sections bears, and a nut, F2, screwed ou the shaft, bears against the other of the sections, whereby the sections are se cured in position. The journals ot' the shaft fit in bearings formed partly in the lower sec-A tion and partly in the upper section of the casing. They are furnished with collars @,which enter grooves, and so serve to steady the shaft- -in its movements. The sections of the rota-ry part have a circular profile and one or more V-shaped circumferential ribs or projections, forming beveled sides or faces f, extending into proximity with the sides or faces of the abutment. The arc-shaped profile of the abutment is preferably arranged cccentricall y to the profile of the rotary part, so that between the two parts will be left a space which will contract or decrease in size downwardly. The face of the abutment i's very short, audit is arranged at a considerable distance above the lower side of the rotary part, so that the disintegrated material may drop freely from between them, and thus be delivered by gravity alone. The beveled faces d, which are nearest the opposite sides of the'abutment, overlap or fit outside the beveled faces fon the outer sides of the rotary part E E'. As the abutment has a rectilinear adjustment toward and from the rotary part, the degree of eccentricity of its face'relatively to the rotary part will be the same, no matter at what distance from the rotary part its face is., I may'provide the beveled sides or faces of the rotary part with teeth f', preferably arranged reversely to the teeth of the abutment.

The material to be disintegrated is introduced into the hopper, and is disintegrated in its passing between the abutment and the rotary part. 4,The degree of neness of the disintegration may be varied by adjusting the abutment. The material disintegrated may pass through an opening, g, in the lower sec tion of the case into any suitable receptacle.

This machine may be used for disintegrating grain, ores, or other materials. v

The sections of the rotary part E E will IOO preferably be made of east-steel; but the secl said rot-ary part havingyV-shaped circumfertions C C C2 ot1 the abutment may, with adential ribs or projections and the said abutvantage, be made of cast-steel orof stone, or menthavingcorresponding VLShap'ed grooves, i 5 in some cases ot' wood, and the abutting surwhich are closer at the bottom to 'said ribs or 5 lfaces of the sections of the abutment are at the projections and extend outside the sides of bottoms of the grooves therein. i the rotary part, with devices for adjusting and What I claim as my invention, and desire to securing said abutment, substantially as speci-` secure by Letters Patent, isfied.

in aA disintegrating-machine, the combina--l SILAS DODSOIN. :o tion of a rotary part land a fixed abutment Witnesses: l

composed of sections between which the ma- JAMES R. BOWEN, fr terial to be disintegrated is operated upon, the T. J. KEANE. 

